EP0572657A1 - Multi-mode accelerometer - Google Patents
Multi-mode accelerometerInfo
- Publication number
- EP0572657A1 EP0572657A1 EP93902753A EP93902753A EP0572657A1 EP 0572657 A1 EP0572657 A1 EP 0572657A1 EP 93902753 A EP93902753 A EP 93902753A EP 93902753 A EP93902753 A EP 93902753A EP 0572657 A1 EP0572657 A1 EP 0572657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- accelerometer
- piezoelectric film
- electrodes
- acceleration
- angular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004044 response Effects 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000001133 acceleration Effects 0.000 claims description 69
- 230000035945 sensitivity Effects 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 29
- 239000000463 material Substances 0.000 abstract description 19
- 238000005452 bending Methods 0.000 abstract description 8
- 238000010030 laminating Methods 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 17
- 229920006254 polymer film Polymers 0.000 description 7
- 239000002033 PVDF binder Substances 0.000 description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000004886 head movement Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
- G01P15/0922—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up of the bending or flexing mode type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
Abstract
Accéléromètre (10) à transducteur piézo-électrique (22) produisant des signaux électriques lorsqu'il est soumis à une flexion et comprenant une poutrelle continue allongée de forme généralement plate et de faible section transversale pour présenter un axe de coourbure facilitant la flexion des extrémités libres en réponse à un choc en un ou plusieurs des modes linéaires et de torsion. La poutrelle est maintenue en son milieu par un support (29), les extrémités libres de la poutrelle se situant de préférence à la même distance du support. En laminant une seule pièce de matériau piézo-électrique sur un substrat rigide et en formant des cantilevers dans chaque sens de flexion, on peut obtenir un accéléromètre à six degrés de liberté. On peut également obtenir un accéléromètre angulaire de type compressif (122) à partir de deux capteurs piézo-électriques intégrés à une seule pièce polymère piézo-électrique (126).Accelerometer (10) with piezoelectric transducer (22) producing electrical signals when subjected to bending and comprising an elongated continuous beam of generally flat shape and of small cross section to present a curvature axis facilitating bending of the ends free in response to a shock in one or more of the linear and torsion modes. The beam is held in its middle by a support (29), the free ends of the beam preferably being at the same distance from the support. By laminating a single piece of piezoelectric material on a rigid substrate and forming cantilevers in each direction of flexion, an accelerometer with six degrees of freedom can be obtained. A compressive type angular accelerometer (122) can also be obtained from two piezoelectric sensors integrated into a single piezoelectric polymer part (126).
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81260391A | 1991-12-23 | 1991-12-23 | |
US812603 | 1991-12-23 | ||
US95234592A | 1992-09-28 | 1992-09-28 | |
US952345 | 1992-09-28 | ||
PCT/US1992/011207 WO1993013426A1 (en) | 1991-12-23 | 1992-12-23 | Multi-mode accelerometer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0572657A1 true EP0572657A1 (en) | 1993-12-08 |
EP0572657A4 EP0572657A4 (en) | 1994-05-18 |
EP0572657B1 EP0572657B1 (en) | 1998-08-05 |
Family
ID=27123644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93902753A Expired - Lifetime EP0572657B1 (en) | 1991-12-23 | 1992-12-23 | Multi-mode accelerometer |
Country Status (5)
Country | Link |
---|---|
US (1) | US5452612A (en) |
EP (1) | EP0572657B1 (en) |
AU (1) | AU3421593A (en) |
DE (1) | DE69226519T2 (en) |
WO (1) | WO1993013426A1 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0616221B1 (en) * | 1993-03-19 | 1998-11-25 | Murata Manufacturing Co., Ltd. | Acceleration sensor |
US5521772A (en) * | 1993-11-30 | 1996-05-28 | International Business Machines Corporation | Disk drive with accerleration rate sensing |
US5982573A (en) * | 1993-12-15 | 1999-11-09 | Hewlett-Packard Company | Disk drive and method for minimizing shock-induced damage |
US5445412A (en) * | 1994-03-07 | 1995-08-29 | Automotive Systems Laboratory, Inc. | Vehicle impact detection system |
DE4428124B4 (en) * | 1994-08-09 | 2005-08-18 | Robert Bosch Gmbh | accelerometer |
JP3114538B2 (en) * | 1994-12-12 | 2000-12-04 | 株式会社村田製作所 | Piezoelectric element and method of manufacturing the same |
JPH08138307A (en) * | 1994-09-16 | 1996-05-31 | Toshiba Corp | Information memory |
DE4439297A1 (en) * | 1994-11-07 | 1996-05-09 | Pi Ceramic Gmbh | Piezoelectric sensor with beam or plate type element with linear and width edges |
DE4440078A1 (en) * | 1994-11-10 | 1996-05-15 | Telefunken Microelectron | Piezoelectric accelerometer |
JPH0972929A (en) * | 1995-09-07 | 1997-03-18 | Whitaker Corp:The | Multiaxial accelerometer beam |
FR2739190B1 (en) * | 1995-09-26 | 1997-11-28 | Onera (Off Nat Aerospatiale) | MONOLITHIC ACCELERATION TRANSDUCER |
JP3321354B2 (en) * | 1996-03-28 | 2002-09-03 | 株式会社日立製作所 | Positioning method, positioning device, and rotary storage device |
JP2000510244A (en) * | 1996-12-31 | 2000-08-08 | ヒュンダイ モーター カンパニー | Symmetric joint mass type acceleration member and method of manufacturing the same |
US5801311A (en) * | 1997-04-30 | 1998-09-01 | Seagate Technology, Inc. | Rotary drive accelerator |
US6050144A (en) * | 1997-06-04 | 2000-04-18 | Matsushita Electric Industrial Co., Ltd. | Acceleration sensor |
US6008731A (en) * | 1997-07-30 | 1999-12-28 | Union Switch & Signal, Inc. | Detector for sensing motion and direction of a railway vehicle |
US6031317A (en) * | 1997-09-17 | 2000-02-29 | Aeptec Microsystems, Inc. | Piezoelecric shock sensor |
KR20010013748A (en) * | 1998-05-19 | 2001-02-26 | 모리시타 요이찌 | Acceleration sensor and acceleration apparatus using acceleration sensor |
US6304406B1 (en) | 1998-06-05 | 2001-10-16 | Seagate Technology Llc | Rotational vibration compensation using a fixed head and a constant frequency pattern |
US6222336B1 (en) | 1998-06-05 | 2001-04-24 | Seagate Technology Llc | Rotational vibration detection using spindle motor velocity sense coils |
US6088185A (en) * | 1998-06-05 | 2000-07-11 | Seagate Technology, Inc. | Rotational vibration detection using a velocity sense coil |
US6285522B1 (en) | 1998-06-05 | 2001-09-04 | Seagate Technology Llc | Rotational vibration compensation using a dedicated surface with a constant frequency pattern |
US6304409B1 (en) | 1999-06-30 | 2001-10-16 | Seagate Technology Llc | Active damping of actuator bearing translational mode |
JP4491114B2 (en) * | 2000-06-23 | 2010-06-30 | 株式会社日立グローバルストレージテクノロジーズ | Fall detection sensor and information processing apparatus using the same |
US6629462B2 (en) * | 2000-07-24 | 2003-10-07 | Matsushita Electric Industrial Co., Ltd. | Acceleration sensor, an acceleration detection apparatus, and a positioning device |
ITTO20040436A1 (en) | 2004-06-28 | 2004-09-28 | St Microelectronics Srl | FREE FALL DETECTION DEVICE FOR THE PROTECTION OF PORTABLE APPLIANCES. |
JP2007157203A (en) * | 2005-12-01 | 2007-06-21 | Fujitsu Ltd | Data storage device |
JP5549673B2 (en) * | 2009-08-25 | 2014-07-16 | 日本電気株式会社 | Vibration sensor mounting structure of storage device |
US8172777B2 (en) * | 2009-09-14 | 2012-05-08 | Empire Technology Development Llc | Sensor-based health monitoring system |
JP5556210B2 (en) * | 2010-02-05 | 2014-07-23 | ソニー株式会社 | Sensors and electronics |
EP2502800B1 (en) * | 2011-03-25 | 2013-05-08 | Thales Deutschland GmbH | Detector for cold movement detection of a railway vehicle, and method for its operation |
RU2495438C1 (en) * | 2012-01-23 | 2013-10-10 | Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр - всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина " | Piezoelectric sensor of impact acceleration |
RU2607224C1 (en) * | 2015-08-10 | 2017-01-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Method of gluing elements of piezoelectric sensor of impact acceleration |
US10109322B1 (en) | 2017-06-12 | 2018-10-23 | Seagate Technology Llc | Anti-shock system for a data storage device |
DE102018122260A1 (en) * | 2018-09-12 | 2020-03-12 | HELLA GmbH & Co. KGaA | Sensor device for detecting at least one sound signal and method for producing a sensor device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE747008C (en) * | 1939-03-11 | 1944-09-04 | Peter Petersen | Piezoelectric, acceleration-sensitive encoder |
DE2316130A1 (en) * | 1973-03-30 | 1974-10-10 | Siemens Ag | DEVICE FOR DETECTING MOVEMENTS OF A BODY |
GB1601547A (en) * | 1977-05-30 | 1981-10-28 | Yokogawa Electric Works Ltd | Force detector |
EP0399680A2 (en) * | 1989-05-02 | 1990-11-28 | Fujikura Ltd. | Piezoelectric acceleration sensor |
DE9017712U1 (en) * | 1990-07-27 | 1991-09-26 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2716893A (en) * | 1949-10-18 | 1955-09-06 | Gen Dynamics Corp | Means and apparatus for utilizing gyrodynamic energy |
US3304787A (en) * | 1962-12-29 | 1967-02-21 | Toyoda Chuo Kenkyusho Kk | Three-dimensional accelerometer device |
US3363471A (en) * | 1964-06-25 | 1968-01-16 | Endevco Corp | Accelerometer |
US3842681A (en) * | 1973-07-19 | 1974-10-22 | Sperry Rand Corp | Angular rate sensor |
US4038876A (en) * | 1976-03-04 | 1977-08-02 | Systron Donner Corporation | Acceleration error compensated attitude sensing and control apparatus and method |
US4121272A (en) * | 1977-05-02 | 1978-10-17 | General Electric Company | Torsional oscillation alarm system |
AT375466B (en) * | 1977-07-27 | 1984-08-10 | List Hans | MEASURING VALUE WITH A PIEZOELECTRIC MEASURING ELEMENT |
US4431935A (en) * | 1981-09-15 | 1984-02-14 | Rockwell International Corporation | Sensor structure incorporating multiple piezoelectric generators |
US4430895A (en) * | 1982-02-02 | 1984-02-14 | Rockwell International Corporation | Piezoresistive accelerometer |
US4457173A (en) * | 1982-05-03 | 1984-07-03 | The United States Of America As Represented By The Secretary Of The Army | Multifunction sensor using thin film transistor transducers |
US4660410A (en) * | 1983-10-25 | 1987-04-28 | Matsushita Electric Industrial Co., Ltd. | Knock sensor |
GB8408659D0 (en) * | 1984-04-04 | 1984-05-16 | Syrinx Precision Instr Ltd | Rotation rate sensor |
JPS613359A (en) * | 1984-06-15 | 1986-01-09 | Matsushita Electric Ind Co Ltd | Recording and reproducing device |
JPS6138359U (en) * | 1984-08-10 | 1986-03-10 | 大阪機器製造株式会社 | Valve opening/closing drive mechanism |
US4720682A (en) * | 1984-11-29 | 1988-01-19 | Matsushita Electric Industrial Co., Ltd. | Surface electric potential sensor |
CA1259883A (en) * | 1984-11-30 | 1989-09-26 | Process Technology (1988) Limited | Gas supply device, particularly for manufacturing semiconductor elements |
JPH06103103B2 (en) * | 1985-04-11 | 1994-12-14 | 松下電器産業株式会社 | Microwave oven with piezoelectric element sensor |
US4831476A (en) * | 1985-07-15 | 1989-05-16 | Allen-Bradley Company | Disc drive isolation system |
EP0325674A1 (en) * | 1988-01-29 | 1989-08-02 | Kistler Instrumente AG | Transducer element for measuring of rotational acceleration |
US4937806A (en) * | 1988-02-12 | 1990-06-26 | Mdb Systems, Inc. | Shock-isolated portable mass data storage device |
US4862298A (en) * | 1988-03-11 | 1989-08-29 | Magnetic Peripherals Inc. | Shock load detection device |
US4870868A (en) * | 1988-04-27 | 1989-10-03 | Pennwalt Corporation | Vibration sensing apparatus |
US4868566A (en) * | 1988-05-03 | 1989-09-19 | Badger Meter, Inc. | Flexible piezoelectric switch activated metering pulse generators |
JPH071207B2 (en) * | 1988-05-09 | 1995-01-11 | 株式会社日立製作所 | Piezoelectric physical quantity detector |
JPH03259750A (en) * | 1990-03-09 | 1991-11-19 | Fujikura Ltd | Piezoelectric type acceleration sensor |
JPH032515A (en) * | 1989-05-29 | 1991-01-08 | Japan Aviation Electron Ind Ltd | Rotary beam type two-axial angular velocity meter |
US5009106A (en) * | 1989-07-06 | 1991-04-23 | Kistler Instrumente Ag | Accelerometer with improved shock resistance |
US5001933A (en) * | 1989-12-26 | 1991-03-26 | The United States Of America As Represented By The Secretary Of The Army | Micromechanical vibration sensor |
US5003824A (en) * | 1989-12-26 | 1991-04-02 | Matsushita Electric Industrial Co., Ltd. | Vibration/acceleration sensor |
JPH03242557A (en) * | 1990-02-20 | 1991-10-29 | Fujikura Ltd | Pizeoelectric acceleration sensor |
JPH03242555A (en) * | 1990-02-20 | 1991-10-29 | Fujikura Ltd | Piezoelectric acceleration sensor |
JPH03242556A (en) * | 1990-02-20 | 1991-10-29 | Fujikura Ltd | Piezoelectric acceleration sensor |
JPH0420865A (en) * | 1990-05-15 | 1992-01-24 | Sony Corp | Rotation detecting apparatus |
US5235472A (en) * | 1991-10-18 | 1993-08-10 | Seagate Technology, Inc. | Apparatus for sensing operating shock on a disk drive |
-
1992
- 1992-12-23 WO PCT/US1992/011207 patent/WO1993013426A1/en active IP Right Grant
- 1992-12-23 AU AU34215/93A patent/AU3421593A/en not_active Abandoned
- 1992-12-23 DE DE69226519T patent/DE69226519T2/en not_active Expired - Fee Related
- 1992-12-23 EP EP93902753A patent/EP0572657B1/en not_active Expired - Lifetime
-
1993
- 1993-11-30 US US08/159,350 patent/US5452612A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE747008C (en) * | 1939-03-11 | 1944-09-04 | Peter Petersen | Piezoelectric, acceleration-sensitive encoder |
DE2316130A1 (en) * | 1973-03-30 | 1974-10-10 | Siemens Ag | DEVICE FOR DETECTING MOVEMENTS OF A BODY |
GB1601547A (en) * | 1977-05-30 | 1981-10-28 | Yokogawa Electric Works Ltd | Force detector |
EP0399680A2 (en) * | 1989-05-02 | 1990-11-28 | Fujikura Ltd. | Piezoelectric acceleration sensor |
DE9017712U1 (en) * | 1990-07-27 | 1991-09-26 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De |
Non-Patent Citations (1)
Title |
---|
See also references of WO9313426A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0572657A4 (en) | 1994-05-18 |
US5452612A (en) | 1995-09-26 |
WO1993013426A1 (en) | 1993-07-08 |
AU3421593A (en) | 1993-07-28 |
EP0572657B1 (en) | 1998-08-05 |
DE69226519D1 (en) | 1998-09-10 |
DE69226519T2 (en) | 1999-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0572657B1 (en) | Multi-mode accelerometer | |
KR0164927B1 (en) | Acceleration detector using piezoelectric device | |
US5955668A (en) | Multi-element micro gyro | |
US6257062B1 (en) | Angular Accelerometer | |
JPH07318567A (en) | Force detecting system containing magnetically attached oscillating element | |
JP2001516884A (en) | Piezoelectric shock sensor | |
US4996878A (en) | Transducer element for measuring angular and linear acceleration | |
EP1790987B1 (en) | Multi-axis acceleration sensor with magnetoresistive detectors of the spin valve type | |
EP0917652B1 (en) | Tunneling sensor with linear force rebalance | |
EP0176539A1 (en) | Rotation rate sensor. | |
EP0586437A1 (en) | Improvements in or relating to gyroscopic devices. | |
JPH0252256A (en) | Accelerometer | |
JP4261468B2 (en) | Acceleration sensor | |
US6050144A (en) | Acceleration sensor | |
US5389850A (en) | Rotational shock sensor | |
US6980388B2 (en) | Magnetic head supporting and positioning control mechanism | |
US4611490A (en) | Angular acceleration sensor | |
EP0753753B1 (en) | Impact sensor | |
JPS61292515A (en) | Navigation sensor | |
US7403352B2 (en) | Acceleration sensor and magnetic disk drive apparatus | |
US6895819B1 (en) | Acceleration sensor | |
WO1997037196A2 (en) | Micromachined rate and acceleration sensor | |
JP2007256234A (en) | Inertia force sensor | |
JPH063153A (en) | Vibration gyro | |
JPH0627133A (en) | Three dimensional acceleration sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19930816 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB SE |
|
A4 | Supplementary search report drawn up and despatched | ||
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): DE FR GB SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ELF ATOCHEM NORTH AMERICA, INC. |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ELF ATOCHEM NORTH AMERICA, INC. |
|
17Q | First examination report despatched |
Effective date: 19951228 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB SE |
|
REF | Corresponds to: |
Ref document number: 69226519 Country of ref document: DE Date of ref document: 19980910 |
|
ET | Fr: translation filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19981110 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19981203 Year of fee payment: 7 Ref country code: FR Payment date: 19981203 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19981230 Year of fee payment: 7 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991224 |
|
EUG | Se: european patent has lapsed |
Ref document number: 93902753.8 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19991223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001003 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |